Update the contributor information

Some of the links and information were outdated here, update
and point to Neutron tree for installation and usage.

TrivialFix

Change-Id: Ia913a976dc2f60eb28548b2f099d924e160df2cf
diff --git a/README.rst b/README.rst
index e658b90..7222c76 100644
--- a/README.rst
+++ b/README.rst
@@ -9,5 +9,5 @@
 * Free software: Apache license
 * Documentation: https://docs.openstack.org/neutron/latest/
 * Source: https://opendev.org/openstack/neutron-tempest-plugin
-* Bugs: https://bugs.launchpad.net/neutron
+* Bugs: https://bugs.launchpad.net/neutron - tag: tempest
 * Release notes: https://docs.openstack.org/releasenotes/neutron-tempest-plugin/